Power Integrations is entering the competitive landscape of AI data center power solutions. During COMPUTEX in Taipei on June 1, the semiconductor company unveiled two ultra-slim auxiliary power supply reference designs tailored for Nvidia’s ground-breaking 800 VDC Kyber architecture, which is designed for next-gen AI infrastructure.

The designs use Power Integrations’ advanced 1700 V PowiGaN gallium-nitride technology, a crucial element for high-voltage applications. The first model has a compact 15 W single-output configuration, measuring just 30 mm by 30 mm by 7 mm. The second is a solid 35 W six-rail isolated unit with dimensions of 80 mm by 60 mm by 8 mm. Notably, both models deliver at least 88% efficiency across varying load conditions and contribute to approximately 30% space savings on power distribution boards, alongside a similar reduction in the cost of materials.

Power Integrations has collaborated with Nvidia on evolving the 800 VDC architecture since at least 2025, as highlighted in a white paper unveiled at the OCP Global Summit in October 2025. This partnership signifies a shift from the outdated 54 VDC power distribution to the more efficient 800 VDC systems. This transition greatly reduces current requirements for the same power output, resulting in thinner copper cabling and fewer unnecessary conversion stages.

Technological Advancements for Power Efficiency

The move to 800 VDC is essential as modern AI training racks, which often need megawatt-level power, outgrow the limitations of older standards. The gallium-nitride transistors utilized by Power Integrations are crucial here; they allow for higher switching frequencies and better handling of voltage in a smaller form factor, precisely catering to the demands posed by the Kyber architecture’s auxiliary power systems.

For investors monitoring the AI infrastructure sector, Power Integrations, listed on Nasdaq with the ticker POWI, presents an appealing opportunity. Collaborations like this with Nvidia suggest significant long-term implications, as securing design wins in a reference architecture often leads to lasting partnerships.

This content is informational and does not constitute financial advice.